Hi, I just built a mini fridge incubator it's average size and I'm have problems with the temperature fluctuating between 95 and 100 degrees. It's forced air and the fan draws air from outside into a compartment with two bulbs a thermostat and sponges. I added some jars of water as heat sinks but not really helping. Someone said that if the fluctuation is constant(which it is) it won't matter cause the eggs internal temp will remain constant... I don't like the idea and don't know I'd I'd trust that. Any thoughts? I'd like to keep the fan drawing air from outside but I'm thinking that's what's doing it...